#101811
Closest named color: Rich Navy (#001219). oklch(19.8% 0.018 148.2), rgb(16, 24, 17).
Aa
White text reads best on this color (18.09:1).
About this color
#101811 is a very dark close to neutral grey. In OKLCH its lightness is 20%, its chroma 0.018. It has too little chroma to lean warm or cool. The nearest named color is Rich Navy (#001219), ΔE 0.043 away. White text reads best on it, at 18.09:1.
| Hue family | Neutrals |
| Lightness | very dark (20%) |
| Chroma | close to neutral grey (0.018) |
| Temperature | neutral |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.16:1 |
| White text | 18.09:1 |
Values
| HEX | #101811 |
| RGB | rgb(16, 24, 17) |
| HSL | hsl(128, 20%, 8%) |
| OKLCH | oklch(19.8% 0.018 148.2) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #101811 | 18.09:1 | AAA | Lc -107.0 | Preferred for body text |
| Black text on #101811 | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #101811 text on white | 18.09:1 | AAA | Lc 104.8 | Preferred for body text |
| #101811 text on black | 1.16:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 950.
-
Step 50
50
#F4F6F4
oklch(97.1% 0.003 145.5)
-
Step 100
100
#E7EBE7
oklch(93.6% 0.007 145.5)
-
Step 200
200
#D4DBD5
oklch(88.4% 0.011 149.8)
-
Step 300
300
#B8C5B9
oklch(81% 0.022 147.6)
-
Step 400
400
#93A795
oklch(70.8% 0.034 148)
-
Step 500
500
#78917B
oklch(63.1% 0.043 148.4)
-
Step 600
600
#607B64
oklch(55.5% 0.047 149)
-
Step 700
700
#4F6853
oklch(49.1% 0.045 149.3)
-
Step 800
800
#415544
oklch(42.7% 0.037 149)
-
Step 900
900
#374639
oklch(37.7% 0.029 148.7)
-
Step 950
950 (this color)
#101811
oklch(19.8% 0.018 148.2)
#101811 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #181711 | 0.015 |
| Deuteranopia (no green cones) | #171611 | 0.014 |
| Tritanopia (no blue cones) | #0F1816 | 0.010 |
| Achromatopsia (no color) | #161616 | 0.018 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #101811
#101811
oklch(19.8% 0.018 148.2)
- #1A131A
#1A131A
oklch(19.9% 0.018 326.2)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #101811, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.043
- Rich Black #0D1B2A ΔE 0.048
- Almost Black #070D0D ΔE 0.048
- Jet #212529 ΔE 0.068
- Dark #1B2431 ΔE 0.071
- Dark Brown #341C02 ΔE 0.078
- Very Dark Brown #1D0200 ΔE 0.079
- Dark Forest Green #002D04 ΔE 0.088
Use #101811 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.